Feuling Relief Valve Plunger Spring & Roll Pin Kit

Feuling Relief Valve Plunger Spring & Roll Pin Kit is compatible with stock cam support plates. The Feuling spring increases the pressure relief valve pop-off PSI.

Note: Feuling recommends bench testing with the Feuling cam support plate pressure test tool, 566117, to set pop-off pressure to your preference and to ensure correct valve seal and valve operation.

Note: See 566111 for a replacement relief valve plunger only.

Compatibility: 99-17 Twin Cam (NU)